James a



Patented Mar. 7, I899. J. A. EVEBITT.

ATOMIZEB.

:Apblication filed June 13, 1898.)

(No Model.)

wi/messes UNITED STATES PATENT OFFICE.

JAMES A. EVERITT, OF INDIANAPOLIS, INDIANA.

ATOMIZER.

fECIFIGATION forming part of Letters Patent No. 620,576, dated March 7, 1899. Application filed June 13, 1898. erial No. 683,290- (No model.)

T0 (tZZ whom it may concern:

Be it known that I, JAMES A. EVERITT, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Atomizers, of which the following is a specification.

This invention relates to improvements in atomizers for discharging liquids or powders in the form of spray or fine dust for destroying bugs,worms, and fungi on trees and plants and for exterminating insects wherever found. It is also useful for other purposes, such as dampening clothes and the like,where a spray is required; but the principal use will be for exterminating parasites of all kinds.

The object of the invention is first to provide a reservoir to contain the material to be sprayed, which will permit the entire contents to be sprayed out when the instrument is operated in an upward as well as in a clownward direction.

The object also is to provide a simple and inexpensive atomizer.

I accomplish the objects of the invention by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a view in side elevation of my improved atomizer; Fig. 2, a longitudinal section of same Fig. '3, a detail in vertical section of the piston and packing; Fig. 4, a detail in side view of the discharge end of the atomizer placed at an angle to discharge the spray in an upward direction; and Fig. 5, similar portions of three atomizers of common form inclined at the same angle as my device shown in Fig. 4, the cans or reservoirs of the several instruments being broken away to show the material inside of the cans.

Similar letters of reference indicate like parts throughout the several views of the drawings.

A represents the hollow atomizer body or cylinder, which passes into the tapering or conical end portion 13, one side of said tapering end portion preferably being in the same plane with the corresponding wall of the cy lindrical portion, as shown in the drawings, in order to facilitate the attachment of the reservoir to the cylinder, but more especially to direct the air-discharge downwardly against the mouth of the discharge-tube from the res ervoir, thereby producing a better suction through said reservoir-tube. This body, as above described, is secured to me in Design Patent No. 28,643, and while I consider such formation as desirable and preferable I do not wish to limit this invention to that construction.

C is an inverted-cone-shaped reservoir or can having an opening at its tapering end, through which the can is filled, and which is closed by a threaded cap C. This under side opening is preferable for emptying the can, and especially in removing sediment. This 1 can is fastened to the cylinder under the tapering end thereof, the preferred construction being with the cylinder extending diaair from the cylinder across the open mouthof the tube D. The current of air from the cylinder is discharged by the reciprocating movement of the piston or plunger E on the end of the rod F. The rod F passes through a suitable opening through the plug G in the large end of the cylinder and terminates with the handle H, by which the piston is moved back and forth in the cylinder. A stop f regulates the inward stroke of the piston.

It will be readily understood that the efficiency of an atomizer of the class described depends very largely on the close-fitting action'of the piston, and this efficiency has been impaired and very often destroyed by the dryingout of the packing, whereby the escape of air around the piston was permitted. This, accompanied by the unavoidable wear, soon renderedthe instrument worthless. One of the prime objects of this invention is to provide an adjustable packing which will enable a leather disk considerably greater in diameter than the diameter of the cylinder to be inserted in said cylinder by bending the edges of the disk in and which after insertion will be expanded automatically and will con tinue to be automatically expanded as the leather shrinks and wears. In carrying out my improvement I provide a screw-thread on the inner end of the piston-rod and screw the rod into a wooden disk H of slightly less diameter than the inside diameter of the cylinder. The threaded end of the rod passes through and projects beyond the disk. Onto the projecting end I next insert a circular disk of leather or other flexible packing material J, which is larger in diameter than the diameter of the cylinder and has a central opening for the rod. Outside of the leather I insert the disk K, preferably of metal. This is of less diameter than the bore of the cylinder and preferably has the edges bent outwardly, as shown at 7c. L is-a nut which screws onto the outer end of the rod, and between the nut and the disk K is a spring M, here shown as a spiral spring, which presses the disk K against the packing-ring J and causes the latter to straighten out between the disks H and K. In inserting the piston the disk K is pressed away from the disk H far enough to permit the turningin of the edges of the pack ing-disk for the easy insertion of the packing into the cylinder, and as the packing grows smaller by shrinkage and wear the spring-pressed disk will straighten it out enough to compensate for the loss.

Besides the defect in the piston which I have just described another serious objection to the efficiency of the atomizer as heretofore constructed has been the incapacity of the machine when turned upward to spray into trees and bushes to utilize much over a half of the contents of the can or reservoir. The reason for this is illustrated in Fig. 5, which shows types of the atomizers in use prior to my invention. It will be seen that the suction-tube which empties the can fails to reach the material to be sprayed long before the can is emptied, and consequently the remaining material is not available for use. The drawings show the instruments only slightly elevated as compared with the maximum angle usually required in high spraying, and it is obvious that a greater inclination will increase instead of lessen the amount of material left in the can. .The advantages derived from the use of a downwardly-tapering can such as I employ in my invention are at once apparent on examination of Fig. 4, in

which it will be seen that practically all of the contents of the can can be removed until the elevation of the chamber brings the lower wall of the can to a horizontal line.

As a powder can be thrown from my atomizer as readily. as liquids, I do not desire to limit its use to liquids. The powder will be placed in the can in exactlythe same manner as where a liquid is used.

Having thus fully described my invention, what I claim as new, and wish to secure by Letters Patent of the United States, is--- 1. In an atomizer a downwardly-tapering bottom of the can, substantially as described.

3. In an atomizer, a downwardly-tapering can or reservoir, a cylinder having a reciprocating piston therein and forming an air-ejector, said cylinder being secured to the can, and a tube extending from a point in front of the mouth of the ejector to a fixed point on the inside of the can approximately at the bottom of the tapered end, substantially as described.

4. In an atomizer, an inverted conical or truncated conical reservoir, a cylinder having a reciprocating piston and forming an airejector, and a rigid tube extending from a point in front of the mouth of the ejector to a point on the inside of the can approximately the cylinder to a point on the inside of the can approximately at the bottom of the tapered end of the can, substantially as described.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 7th day of June, A. D. 1898.

JAMES A. EVERITT. [L. 8.]

lrVitnesse's:

J OSEPH A. MINTURN, SIBLEY F. EVERITT.

IIO 

